ghillert/spring-integration — comment on commit b12235d1e4a30b34a6f4e8a59a62cbb8c3416a05
File: src/reference/docbook/endpoint.xml line 196
By garyrussell:

Hmmm - I am not keen on empty strings for these attributes

either use explicit sample values, or maybe placeholders with descriptive property names...

cron="${some.cron.expression}"